425625240 has 32 divisors (see below), whose sum is σ = 1276876080. Its totient is φ = 113500032.

The previous prime is 425625197. The next prime is 425625269. The reversal of 425625240 is 42526524.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 425625198 and 425625207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1773319 + ... + 1773558.

Almost surely, 2^425625240 is an apocalyptic number.

425625240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

425625240 is an abundant number, since it is smaller than the sum of its proper divisors (851250840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425625240 is a wasteful number, since it uses less digits than its factorization.

425625240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3546891 (or 3546887 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 425625240 is about 20630.6868523566. The cubic root of 425625240 is about 752.2158115696.

The spelling of 425625240 in words is "four hundred twenty-five million, six hundred twenty-five thousand, two hundred forty".